/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { Route } from './Route';
import { Address } from '../Address';
import connection from '@ohos.net.connection';
import { Dns } from '../Dns';

export class RouteSelector {
  netAddresses = new Array<Route>()
  nextRouteIndex: number = 0
  dns: Dns

  constructor(dns: Dns) {
    this.dns = dns
  }

  resetNextInetSocketAddress(add: Array<connection.NetAddress>) {
    if (!!add) {
      for (let i = 0; i < add.length; i++) {
        let address = new Address(add[i].address,add[i].port)
        let route = new Route()
        route.add=address
        this.netAddresses.push(route)
      }
    }
  }

  hasNextRoute(): boolean {
    return this.nextRouteIndex < this.netAddresses.length
  }

  next(): Route {
    if (!!this.netAddresses) {
      let result = this.netAddresses[this.nextRouteIndex]
      this.nextRouteIndex++
      return result
    }
  }
}